Routing has to be done on internal braces.
Holes have to be drilled for the speaker cables (internal & external).
Gluing and cutting damping tiles (4VS).These tiles again are used in
boating and particularly in air crafts to damp /reduce a noise These tiles are very
heavy. They are around 5kg each!! But easy to apply as they are self-adhesive.
Nevertheless I will be tiling for a week if lucky
because it is really tricky a time consuming job.
The main reason I use 4VS was to damper (even more) the Hardwood ply. It has a
rubber finish inside the internal box after the aluminium film (on the 4VS)
is striped off.
One speaker is partly finished and everything is tiled at this stage. More
tiling is required after the speaker is glued etc. (without the sides).
This job also turned out to be really time consuming.